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Since this is a heat pump, it's important to get the matching indoor coil for rated performance, efficiency, reliability, and more importantly, warranty. Your York furnace's coil won't be a match for the 18 SEER outdoor unit (new coils need to be larger than those of the past). Also you want the variable speed fan inside with a 2-stage outdoor unit. 14 or 18 SEER, the indoor unit still needs to be a matching Amana.

oops... I should have said that they would use the Amana ASZ coil inside, just before the York electric furnace.

Pierre

Originally Posted by RyanHughes

Since this is a heat pump, it's important to get the matching indoor coil for rated performance, efficiency, reliability, and more importantly, warranty. Your York furnace's coil won't be a match for the 18 SEER outdoor unit (new coils need to be larger than those of the past). Also you want the variable speed fan inside with a 2-stage outdoor unit. 14 or 18 SEER, the indoor unit still needs to be a matching Amana.

It will cost more, but it's easier to just get the matching Amana air handler, because with the 2-stage outdoor unit the variable speed motor is needed to get the most out of the unit in terms of efficiency and performance. The variable speed motor is certainly worth having with your new system. By electric furnace I assume you mean an air handler inside. The Amana coil may not fit

They would remove my old York coil from my air handler and fit the bigger Amana coil in the return box just before the air handler.

You understand well that I'm trying to save on the cost of an air handler when my York unit is still in good condition.

Would the Amana unit be able to use my York Air Handler's two blower speeds, or should I then go for the ASZ14 one speed unit?

Thanks.

Pierre

Originally Posted by RyanHughes

It will cost more, but it's easier to just get the matching Amana air handler, because with the 2-stage outdoor unit the variable speed motor is needed to get the most out of the unit in terms of efficiency and performance. The variable speed motor is certainly worth having with your new system. By electric furnace I assume you mean an air handler inside. The Amana coil may not fit

But, if using a stage on a standard blower. And not being able to slow the blower enough when its in first stage.
You may see no savings, and possibly use more due to poor moisture removal in first stage becuse the blower doesn't slow down enough.

Either I splurge and get the ASZ18 with a new Amana air handler, or I reuse my York unit and get the ASZ14 Heat Pump. Either way, I understand I'll get roughly the same cooling and heating output.

However, on the long run, even though running the ASZ18 may be cheaper, I guess I'll save more by keeping my York air handler (with an ASZ14 unit) because of the cost or replacing the air handler. I guess the York can last a long way: All its parts are easily (and cheaply) replaced.

Am I right?

Thanks.

Originally Posted by beenthere

The higher SEER generally uses less electric then the lower SEER.

But, if using a stage on a standard blower. And not being able to slow the blower enough when its in first stage.
You may see no savings, and possibly use more due to poor moisture removal in first stage becuse the blower doesn't slow down enough.